<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<%@ taglib prefix="s" uri="/struts-tags"%>    
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
ognl表达式取出缓存中的值：(必须是用在struts标签中才能解析)
<s:property value="#session.lstAdmins[0]"/>
<br>使用el表达式获取值栈内容数据：
${ session.lstAdmins[0]}
<br>
ognl表达式的投影计算：
<s:property value="#session.lstAdmins.{?#this.admins_psw == '333'}"></s:property>

<br>
struts迭代标签：(类似于foreach标签的用法)
<s:iterator status="st" value="#session.lstAdmins" var="eachV">
<s:property value="#eachV.admins_psw"/>
</s:iterator>
</body>
</html>